OPTICAL INTERFERENCE IN 2ND-HARMONIC GENERATION FROM A METAL-SURFACE WITH MOLECULAR ADLAYERS

被引：11

作者：

LI, CM ^{[1
]}

YING, ZC ^{[1
]}

DAI, HL ^{[1
]}

机构：

[1] UNIV PENN,DEPT CHEM,PHILADELPHIA,PA 19104

来源：

JOURNAL OF CHEMICAL PHYSICS | 1994年 / 101卷 / 08期

关键词：

D O I：

10.1063/1.468331

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A strong oscillation pattern was observed in optical second-harmonic generation (SHG) at a Ag(lll) surface under pyridine adlayers with variable thickness. This oscillation appears only when s-, but not p-, polarized fundamental light is used. This effect is attributed to the modulation of the radiation efficiency of the fundamental light penetrating into the Ag bulk and of the second-harmonic light radiating out to the vacuum by pyridine overlayers through optical interference. A standard optical interference model has been developed to quantitatively analyze the oscillation patterns and determine the adlayer thickness. It was found that at 90 K the pyridine overlayer growth rate is 1.4 Angstrom per Langmuir exposure.

引用

页码：7058 / 7063

页数：6

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